[seiga] raise error when redirected to login page (#3401)

mikf · Dec 17, 2022 · 7851a2c · 7851a2c
1 parent 68ce5f9
commit 7851a2c
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/gallery_dl/extractor/seiga.py b/gallery_dl/extractor/seiga.py
@@ -44,7 +44,11 @@ def get_image_url(self, image_id):
         url = "{}/image/source/{}".format(self.root, image_id)
         response = self.request(
             url, method="HEAD", allow_redirects=False, notfound="image")
-        return response.headers["Location"].replace("/o/", "/priv/", 1)
+        location = response.headers["location"]
+        if "nicovideo.jp/login" in location:
+            raise exception.StopExtraction(
+                "HTTP redirect to login page (%s)", location.partition("?")[0])
+        return location.replace("/o/", "/priv/", 1)
 
 
 class SeigaUserExtractor(SeigaExtractor):